scholarly journals Kondisi Optimum Adsorpsi Arang Hayati dari Kulit Pisang Raja (Musa X paradisiaca L.) terhadap Logam Timbal (Pb) dan Tembaga (Cu)

2018 ◽  
Vol 7 (2) ◽  
pp. 55
Author(s):  
Iren S. A. Tanggebono ◽  
Vanny M. A. Tiwow ◽  
Minarni Rama Jura
Keyword(s):  
Optimum Condition ◽  
Copper Ions ◽  
Copper Ion ◽  
Lead Ion ◽  
Banana Peel ◽  
Optimum Time ◽  
Optimum Weight ◽  
The Village ◽  
Central Sulawesi

This study aimed to determine the optimum condition of biocharcoal from banana peel on adsorption of lead (Pb) and copper (Cu) metals based on the variation of weights and biocharcoal contact times. Banana peel used in this research were taken from Sidondo III the village, Sigi, Central Sulawesi. To determine absorbed metals in biocharcoal banana peel was measured by a spectrophotometer spectroDirect. The results showed that the optimum weight of adsorption lead (Pb) ion was 80 mg and copper (Cu) ion was 40 mg with each percentage adsorption of 73.91% and 21.23%, respectively. The optimum time to adsorb lead and copper ions was 90 minutes with the percentage adsorption of 89.13% for lead ion and 25.86% for copper ion.

scholarly journals Preparation of Sago Bark-Derived Magnetic Adsorbent by Impregnation and Carbonation for Lead and Copper Ions Removal

2021 ◽  
Vol 1030 ◽  
pp. 159-168
Author(s):  
Soh Fong Lim ◽  
Nur Amalina Naimah Hamidon ◽  
Sukinah Abdul Karim ◽  
S.N. David Chua ◽  
Bee Huah Lim
Keyword(s):  
Copper Ions ◽  
Copper Ion ◽  
Lead Ion ◽  
Isotherm Models ◽  
Batch Adsorption ◽  
Magnetic Adsorbent ◽  
Spectra Analysis ◽  
Chloride Hexahydrate ◽  
Heavy Metal Ions Removal ◽  
Sago Bark

This paper presents an alternative utilisation of sago barks from the sago industry. In this study, a sago bark-derived magnetic adsorbent was developed by impregnation with ferric chloride hexahydrate (FeCl3H2O) and carbonisation method. The potential of the sago bark-derived magnetic adsorbent to remove lead ion (Pb2+) and copper ion (Cu2+) from aqueous solution was assessed in a batch system. Adsorption experiments were performed as a function of initial concentration (5.0 – 15.0 mg/L). The magnetic adsorbent displayed good ferromagnetic property which aids the separation of the adsorbent after the decontamination process. The magnetic adsorbent was characterised by Fourier Transform Infrared (FTIR) Spectroscopy and Scanning Electron Microscopy embedded with an Energy Dispersive X-ray Spectrometer (SEM-EDX). The FT-IR spectra analysis revealed the surface functional groups of the magnetic adsorbent are C−O−C, C−OH, C− H, −C−C−O, Fe-O, O-H, and C-O. The maximum monolayer adsorption capacities were discovered to be 172.414 and 12500 mg/g for lead and copper ions, respectively. The batch adsorption isotherms were analysed using Langmuir, Freundlich, Jovanovic and Temkin isotherm models. The experimental data perfectly fitted with Langmuir isotherm modelling. The results indicated that the sago bark-derived magnetic adsorbent potentially to be an alternative in replacing more high-priced adsorbents for its application in heavy metal ions removal.

scholarly journals Serbuk Dari Limbah Cangkang Telur Ayam Ras Sebagai Adsorben Terhadap Logam Timbal (Pb)

2017 ◽  
Vol 5 (3) ◽  
pp. 103
Author(s):  
Dewi Satriani ◽  
Purnama Ningsih ◽  
Ratman Ratman
Keyword(s):  
Optimum Condition ◽  
Adsorption Capacity ◽  
Time Variation ◽  
Adsorption Process ◽  
Absorption Capacity ◽  
Optimum Conditions ◽  
Optimum Time ◽  
Weight Variation ◽  
Optimum Weight ◽  
Pb Concentration

The aim of this study is to determine the optimum time and weight required for eggshell powder when it absorbs Pb, and to determine the adsorption capacity of the eggshell powder at the optimum condition for Pb with the shaking time variation of 10, 20, 30, 40 and 50 minutes. The weight variation of adsorbent is 0.25, 0.50, 0.75, 1 and 1.25 grams. The work steps in this study were production of the eggshell powder as the adsorbent, making of a solution of Pb 60 ppm, and determination the Pb concentration at equilibrium using a spectrophotometer spektrodirect respectively. The results obtained after the adsorption process for the time variation was 30 minutes, this optimum time giving %Pb absorbed was 94.65%. The weight variation of adsorbent is 1 gram, this optimum weight giving %Pb absorbed was 98.91%. Furthermore, the absorption capacity adsorbent of eggshell powder in both optimum conditions was 0.078 mg Pb/mg adsorbent.

scholarly journals An Investigation on Design and Characterization of a Highly Selective LED Optical Sensor for Copper Ions in Aqueous Solutions

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1099
Author(s):  
Sheng-Chun Hung ◽  
Chih-Cheng Lu ◽  
Yu-Ting Wu
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Copper Ions ◽  
Incident Light ◽  
Copper Ion ◽  
Intensity Change ◽  
Optical Absorbance ◽  
Sensing System ◽  
Optic Sensor ◽  
Cu Ions

The optical characteristics of copper ion detection, such as the photometric absorbance of specific wavelengths, exhibit significant intensity change upon incident light into the aqueous solutions with different concentrations of metal ions due to the electron transition in the orbit. In this study, we developed a low-cost, small-size and fast-response photoelectric sensing prototype as an optic sensor for copper (Cu) ions detection by utilizing the principle of optical absorption. We quantified the change of optical absorbance from infra-red (IR) light emitting diodes (LEDs) upon different concentrations of copper ions and the transmitted optical signals were transferred to the corresponding output voltage through a phototransistor and circuit integrated in the photoelectric sensing system. The optic sensor for copper (Cu) ions demonstrated not only excellent specificity with other metal ions such as cadmium (Cd), nickel (Ni), iron (Fe) and chloride (Cl) ions in the same aqueous solution but also satisfactory linearity and reproducibility. The sensitivity of the preliminary sensing system for copper ions was 29 mV/ppm from 0 to 1000 ppm. In addition, significant ion-selective characteristics and anti-interference capability were also observed in the experiments by the proposed approach.

Biomimetic synthesis of needle-like fluorescent calcium phosphate/carbon dot hybrid composites for cell labeling and copper ion detection

2016 ◽  
Vol 45 (18) ◽  
pp. 7665-7671 ◽  
Author(s):  
Shanshan Guo ◽  
Shousi Lu ◽  
Pingxiang Xu ◽  
Yi Ma ◽  
Liang Zhao ◽  
...  
Keyword(s):  
Drinking Water ◽  
Calcium Phosphate ◽  
Copper Ions ◽  
Hybrid Composites ◽  
Copper Ion ◽  
Cell Labeling ◽  
Biomimetic Synthesis ◽  
Selective Detection ◽  
Sodium Carboxymethylcellulose ◽  
Biomimetic Method

We report a biomimetic method to synthesize needle-like calcium phosphate (CaP) using carbon dots (CDs) and sodium carboxymethylcellulose as dual templates. The CaP/CDs were capable of cell labeling and selective detection of copper ions in drinking water.

A REVERSIBLE OPTICAL SENSOR BASED ON CHITOSAN FILM FOR THE SELECTIVE DETECTION OF COPPER IONS

2012 ◽  
Vol 24 (05) ◽  
pp. 453-459 ◽  
Author(s):  
Shenhsiung Lin ◽  
Chia-Chen Chang ◽  
Chii-Wann Lin
Keyword(s):  
Functional Groups ◽  
Inductively Coupled Plasma ◽  
Copper Ions ◽  
Three Dimensional ◽  
Copper Ion ◽  
Chitosan Film ◽  
Detection Limits ◽  
Dimensional Structure ◽  
Optical Detectors ◽  
Inductively Coupled

Heavy metals greatly influence animal physiology, even at small doses. Among these metals, the copper ion is of great concern due to its effects on humans and wide applications in industry. Compared to atomic absorption spectroscopy and inductively coupled plasma-mass spectrometry, which destroy the samples that are analyzed, optical techniques do not decompose the analyte and have become a popular field of recent research. In this paper, we combined a novel optical detector that did not require sample-labeling, called surface plasmon resonance (SPR), with chitosan to detect copper ions by modifying the functional groups of chitosan through pH modification. Compared to other optical detectors, the SPR system was relatively fast and involved fewer experimental confounding factors. The three-dimensional structure of chitosan was used to obtain lower detection limits. Moreover, modification of the chitosan functional groups resulted in efficient regeneration by controlling the pH. A detection limit of 0.1 μM was obtained (linear range: 0.5–10 μM, R2 = 0.976), and the specificity was certified by comparing the copper ion with six other ions. Additionally, we successfully regenerated the SPR chips by modifying the functional groups. In conclusion, the chitosan–SPR system detected copper ions with improved detection limits using a quick and simple regeneration method.

scholarly journals Harnessing of Newly Tailored Poly (Acrylonitrile)-Starch Nanoparticle Graft Copolymer for Copper Ion Removal via Oximation Reaction

2021 ◽  
Author(s):  
khaled Mostafa ◽  
H. Ameen ◽  
A. Ebessy ◽  
A. El-Sanabary
Keyword(s):  
Experimental Data ◽  
Adsorption Capacity ◽  
Graft Copolymer ◽  
Adsorption Kinetics ◽  
Copper Ions ◽  
Copper Ion ◽  
Second Order ◽  
First Order ◽  
Pseudo Second Order ◽  
Pseudo First Order

Abstract Our recently tailored and fully characterized poly (AN)-starch nanoparticle graft copolymer having 60.1 G.Y. % was used as a starting substrate for copper ions removal from waste water effluent after chemical modification with hydroxyl amine via oximation reaction. This was done to change the abundant nitrile groups in the above copolymer into amidoxime one and the resultant poly (amidoxime) resin was used as adsorbent for copper ions. The resin was characterized qualitatively via rapid vanadium ion test and instrumentally by FT-IR spectra and SEM morphological analysis to confirm the presence of amidoxime groups. The adsorption capacity of the resin was done using the batch technique, whereas the residual copper ions content in the filtrate before and after adsorption was measured using atomic adsorption spectrometry. It was found that the maximum adsorption capacity of poly (amidoxime) resin was 115.2 mg/g at pH 7, 400ppm copper ions concentration and 0.25 g adsorbent at room temperature. The adsorption, kinetics and isothermal study of the process is scrutinized using different variables, such as pH, contact time, copper ion concentration and adsorbent dosage. Different kinetics models comprising the pseudo-first-order and pseudo-second-order have been applied to the experimental data to envisage the adsorption kinetics. It was found from kinetic study that pseudo-second-order rate equation was better than pseudo-first-order supporting the formation of chemisorption process. While, in case of isothermal study, the examination of calculated correlation coefficient (R2) values showed that the Langmuir model provide the best fit to experimental data than Freundlich one.

scholarly journals Sosialisasi dan Edukasi Pemanfaatan Limbah Kulit Pisang sebagai Masker Wajah Alami Kaya Antioksidan di Kecamatan Marpoyan Damai, Pekanbaru

2019 ◽  
Vol 4 (4) ◽  
pp. 589-593
Author(s):  
Putri Ade Rahma Yulis ◽  
Yelfira Sari ◽  
Desti Desti
Keyword(s):  
Local Community ◽  
Skin Care ◽  
Banana Peel ◽  
Purchasing Power ◽  
Adult Women ◽  
Facial Skin ◽  
Asking Questions ◽  
The Village ◽  
Beauty Products

SOCIALIZATION AND EDUCATION ON THE UTILIZATION OF BANANA SKIN WASTE AS ANTIOXIDANT-RICH NATURAL FACE MASKS IN MARPOYAN DAMAI DISTRICT, PEKANBARU. The fact at this time is the increasing level of consumer consumption of beauty products. It does not only occur among adult women but also teenager. But the consumptive level not accompanied by purchasing power of quality products. Based on interviews with residents of the village of East Sidomulyo, most of the citizens are among adult women and teenagers that they mostly use ready-made masks that are sold in the market because it is more practical and faster in the process of use without considering the possibility of its contents which are harmful to skin health. The problem of the partners is to encourage service in the form of socialization and education to the local community to be able to take advantage of the banana peel waste that is widely available in the environment because it is now became popular a variety of processed banana products, but in terms of waste has not been utilized at all. This education is based on several studies that banana peels contain high antioxidants so it is very good if it can be processed as a mask for a facial skin care. In addition, the utilization of waste will be able to reduce pollution that might occur in the environment due to banana peels that are not treated. The existence of this activity was very welcomed by residents, this can be seen from the enthusiasm of residents asking questions regarding the problems presented and the impression of some residents who want this activity to be carried out continuously, so that more people feel the benefits and they are very enthusiastic to directly apply the knowledge.

scholarly journals Studi Perbandingan Kadar Ni dan Fe Berdasarkan Sampel Cek Pit dan Sampel Cek Stock Pile Mining Nikel pada PT. Bintangdelapan Mineral Sulawesi Tengah

2021 ◽  
Vol 4 (1) ◽  
pp. 41
Author(s):  
Villa Evadelvia Ginal Sambari
Keyword(s):  
Field Research ◽  
Analysis Tool ◽  
Microsoft Excel ◽  
Preparation Stage ◽  
Stock Pile ◽  
Collection Data ◽  
Nickel Mining ◽  
Mineral District ◽  
The Village ◽  
Central Sulawesi

Nickel mining in PT. Bintangdelapan Mineral District located in the village Fatufia Bahodopi Morowali, Central Sulawesi. The purpose of this research study sampling techniques and sample checks pit stock pile, and aimed to compare the levels of Ni, Fe. The authors limit the issues on comparative levels of Ni, Fe, based on sampling and sample checks pit mining production and production sample port stock pile, using the analysis tool Minipal. Field research methods consisting of the preparation stage, the stage of data collection, data processing stage and phase of Thesis. Results in getting the checks on the sampling pit, mining samples, and sample port is an increase in levels, this is because the mining PT. Bintangdelapan Minerals has applied to both selective mining mining methods. In this sample, the researcher applied sampling method and sample check stock pile pit nickel laterite operations in accordance with standard PT. Bintangdelapan Minerals, the data obtained is processed using Microsoft Excel and then presented in the form of reading SPSS (Statistical Product And Service Solution).

scholarly journals STUDI KINETIKA ADSORPSI Pb MENGGUNAKAN ARANG AKTIF DARI KULIT PISANG

Konversi ◽  
2015 ◽  
Vol 4 (1) ◽  
pp. 17
Author(s):  
Ari Susandy Sanjaya ◽  
Rizcy Paramita Agustine
Keyword(s):  
Adsorption Process ◽  
Freundlich Isotherm ◽  
Langmuir Equation ◽  
Kinetics Model ◽  
Banana Peel ◽  
Maximum Adsorption Capacity ◽  
Kinetics Analysis ◽  
Optimum Time ◽  
Lead Metal ◽  
Isotherm Equations

Abstrak- Logam Pb merupakan salah satu pencemar lingkungan dan dapat mengakibatkan kematian atau gangguan kesehatan dalam waktu singkat. Salah satu cara untuk mengatasi masalah pencemaran Pb adalah dengan menggunakan arang aktif dari kulit pisang. Penelitian ini bertujuan untuk menentukan model kinetika yang sesuai pada proses adsorpsi Pb dengan melihat daya jerap arang aktif kulit pisang dalam berbagai variasi massa (1 g; 1,5g dan 2 g) dan waktu kontak (20 menit, 40 menit dan 60 menit). Analisa Kinetika didasarkan pada kinetika orde nol, orde satu dan orde dua serta menentukan kapasitas maksimum adsorpsi arang atif kulit pisang  terhadap logam Pb. Persamaan yang digunakan dalam proses adsorpsi adalah persamaan adsorpsi Isoterm Langmuir dan Freundlich. Dari hasil analisa, waktu optimum adsorbsi terjadi pada waktu 60 menit.  Kinetika adsorbsi logam Pb dengan arang aktif dari kulit pisang pada massa 1 dan 2 g mengikuti model kinetika orde 2, sedangkan pada massa 1,5 g mengikuti kinetika orde 0. Persamaan adsorpsi Langmuir lebih sesuai untuk isotherm adsorpsi pada penelitian ini. Adsorpsi Pb oleh kulit pisang yang sesuai dengan pola isotherm adsorpsi Langmuir mengindikasikan bahwa adsorpsi hanya berlangsung satu lapis (monolayer). Kapasitas adsorpsi maksimum ditunjukkan oleh nilai a yang besar, yaitu 1,4582 pada massa 1 g sedangkan kekuatan interaksi antara ion Pb2+ dengan kulit pisang terjadi pada massa 2 g yang ditunjukkan dengan nilai kL yang besarnya 0,409 Kata kunci : kinetika adsorpsi, arang aktif, kulit pisang, logam Pb  Abstract- Lead metal is one of environment polluter and can cause decease or health problems in sort time. The way to solve this problem is with used the carbon active from banana peel. This research is intend to find the kinetics model that appropriate in Pb adsorption process by knowing absorption of banana peel carbon active within mass variations (1; 1,5 and 2 g) and contact time (20, 40, and 60 minutes). Kinetics analysis are based from orde zero,one, and two and find the maximum capacity of adsorption from banana peel carbon active to lead metal. Equation which using at the adsorption process are Langmuir and Freundlich isotherm equations. From the analysis results, optimum time is at 60 minutes.kinetics of Pb absorption with carbon active from banana peel in mass 1 and 2 gr following kinetics model orde 2, then in mass 1,5 g following kinetics model orde 0. Langmuir equation is more appropriate in this research. Pb absorption from the banana peel that appropriate to Langmuir isotherm system is indicates adsorption was occur in one layer (monolayer). Maximum adsorption capacity is showing by the bigger value from a, that is 1,4582 in mass 1 g then interaction power of Pb with the banana peel was occur in mass 2 gr which showing with the value of kL is 0,4090.  Keywords : adsorption kinetics, carbon active, banana peel, Pb metal

scholarly journals Natural Batch Adsorption Operation to Remove Dissolved Copper (II) by Carbon Charcoal Rambutan

2021 ◽  
Vol 2129 (1) ◽  
pp. 012010
Author(s):  
B Haryanto ◽  
S E Saragih ◽  
R Tambun ◽  
H Harahap ◽  
K Manik ◽  
...  
Keyword(s):  
Metal Ions ◽  
Copper Ions ◽  
Copper Ion ◽  
Mesh Size ◽  
Total Weight ◽  
Batch Adsorption ◽  
Adsorbent Surface ◽  
Instrument Analysis

Abstract Carbon charcoal was made from rambutan rods and used as an adsorbent. A gram 70/100 mesh size of adsorbent was then used to adsorb 100 ml of copper ion solution with a 70 ppm concentration. In this investigation, the batch procedure was used without shaking (naturally). The charcoal carbon rambutan ability to remove the copper ion was measured by AAS. The percentage result was 48,135% or about 33,694 ppm. SEM and EDX instrument analysis have applied to confirm the presence of copper ions on the adsorbent surface. The copper ion was found at a concentration of 0.09 percent of the total weight. The carbon charcoal adsorbent in rambutan rods has the ability to purify the water contaminated by metal ions.

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