Adsorption of binary and multi heavy metals ions from aqueous solution by amine functionalized SBA-15 mesoporous adsorbent in a batch system

The growth of heavy metals in wastewater is a widespread concern that affects thousands of lives and spread diseases worldwide. Its extraction is subject of concert from last few decades. Looking forward in the current study, Citrus Limon leaves were used as an adsorbent for the Biosorption of Co(II) and Cr(III) in a batch system. Citrus Limon leaves were brought from the local garden of Amakhel, Tank, Pakistan. The removal process of Co(II) and Cr(III) was examined under different conditions of pH, contact time, and initial concentration to get the optimum condition. It was found optimum contact time for Co(II) and Cr(II) was 20 and 10 minutes. By the increase of concentration of adsorbate, the value of qe was investigated for Co(II) and Cr(III) at 20oC. The optimum initial concentration for Cr(III) and Co(II) was 60 ppm and 40 ppm, respectively. The optimum shaking power for Cr(III) and Co(II) was found to be 150 rpm and 120 rpm, respectively.

Download Full-text

Potential application of Allium Cepa seeds as a novel biosorbent for efficient biosorption of heavy metals ions from aqueous solution

Chemosphere ◽

10.1016/j.chemosphere.2021.130545 ◽

2021 ◽

pp. 130545

Author(s):

Ziviqar Sheikh ◽

Muhammad Amin ◽

Noureen Khan ◽

Muhammad Najam Khan ◽

Syed Kamran Sami ◽

...

Keyword(s):

Heavy Metals ◽

Aqueous Solution ◽

Allium Cepa ◽

Potential Application ◽

Biosorption Of Heavy Metals ◽

Heavy Metals Ions

Download Full-text

Parameters Affecting Dye Adsorption - Using Graphene Coated Sand (GSC)

International Journal of Science and Engineering Invention ◽

10.23958/ijsei/vol04-i02/01 ◽

2018 ◽

Vol 4 (02) ◽

Author(s):

Seroor Atalah Khaleefa Alia ◽

Dr. Mohammed Ibrahimb ◽

Hussein Ali Hussein

Keyword(s):

Heavy Metals ◽

Contact Time ◽

Organic Dyes ◽

Low Cost ◽

Dye Adsorption ◽

Contaminated Water ◽

Maximum Adsorption Capacity ◽

Engineering Designs ◽

Heavy Metals Ions ◽

Coated Sand

Adsorption is most commonly applied process for the removal of pollutants such as dyes and heavy metals ions from wastewater. The present work talks about preparing graphenic material attached sand grains called graphene sand composite (GSC) by using ordinary sugar as a carbon source. Physical morphology and chemical composition of GSC was examined by using (FTIR, SEM, EDAX and XRD). Efficiency of GSC in the adsorption of organic dyes from water was investigated using reactive green dye with different parameters such as (ph, temperature, contact time and dose). Adsorption isotherm was also studied and the results showed that the maximum adsorption capacity of dye is 28.98 mg/g. This fast, low-cost process can be used to manufacture commercial filters to treat contaminated water using appropriate engineering designs.

Download Full-text

Removal of heavy metals from aqueous solution using carbon-based adsorbents: A review

Journal of Water Process Engineering ◽

10.1016/j.jwpe.2020.101339 ◽

2020 ◽

Vol 37 ◽

pp. 101339 ◽

Cited By ~ 8

Author(s):

Chengyu Duan ◽

Tianyu Ma ◽

Jianyu Wang ◽

Yanbo Zhou

Keyword(s):

Heavy Metals ◽

Aqueous Solution ◽

Removal Of Heavy Metals ◽

Carbon Based

Download Full-text

The removal of heavy metals from aqueous solution using natural Jordanian zeolite

Applied Water Science ◽

10.1007/s13201-016-0382-7 ◽

2016 ◽

Vol 7 (4) ◽

pp. 2021-2028 ◽

Cited By ~ 29

Author(s):

Yazan Taamneh ◽

Suhail Sharadqah

Keyword(s):

Heavy Metals ◽

Aqueous Solution ◽

Removal Of Heavy Metals

Download Full-text

High Cr(VI) Adsorption Performance of Coal-Based Activated Carbon in Aqueous Solution

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.798-799.1123 ◽

2013 ◽

Vol 798-799 ◽

pp. 1123-1127

Author(s):

Hua Lei Zhou ◽

Qiong Qiong Zhu ◽

Dong Hua Huang

Keyword(s):

Aqueous Solution ◽

Activated Carbon ◽

Pore Structure ◽

Ph Value ◽

High Surface ◽

High Surface Area ◽

Koh Activation ◽

Transmission Electron ◽

Mesoporous Adsorbent ◽

Initial Ph

The activated carbon with high surface area was prepared by KOH activation from anthracite and used as adsorbent for removal of Cr (VI) from aqueous solution. The pore structure and surface properties were characterized by N2 adsorption at 77K, transmission electron microscope (TEM) and Fourier transform infrared spectroscopy ( FTIR). Effect of pH and isotherms at different temperature were investigated. Results show that the prepared carbon is a microporous-and mesoporous-adsorbent with developed pore structure and abundant surface oxygen-containing groups. PH value of the solution plays key function on the adsorption. The chemical adsorption dominates the adsorption process. The activated carbon exhibits much higher Cr adsorption capacity than the commercial activated carbon at initial pH of ~3. The equilibrium adsorption data are fitted by both Freundlich model and Langmuir model well.

Download Full-text

Advances in Graphene for Adsorption of Heavy Metals in Wastewater

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.550-553.2121 ◽

2012 ◽

Vol 550-553 ◽

pp. 2121-2124 ◽

Cited By ~ 4

Author(s):

Ling Ling Luo ◽

Xing Xing Gu ◽

Jun Wu ◽

Shu Xian Zhong ◽

Jian Rong Chen

Keyword(s):

Waste Water ◽

Heavy Metals ◽

Aqueous Solution ◽

Graphene Oxide ◽

Physical Structure ◽

High Specific Surface Area ◽

Functionalized Graphene ◽

Storage Material ◽

Energy Storage Material ◽

Material Composite

Graphene for its unique physical structure, excellent mechanical, electrical and physical properties has been widely applied in nanoelectronics, microelectronics, energy storage material, composite materials and so on. In recent years, many researchers found graphene have outstanding adsorption capacity of contaminants in aqueous solution due to its high specific surface area. This paper summarized the graphene, graphene oxide and functionalized graphene removing various heavy metals in waste water.

Download Full-text

Removal of Heavy Metals from Aqueous Solution by Hydroxyapatite/Chitosan Composite

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.789.176 ◽

2013 ◽

Vol 789 ◽

pp. 176-179 ◽

Cited By ~ 3

Author(s):

Eny Kusrini ◽

Nofrijon Sofyan ◽

Dwi Marta Nurjaya ◽

Santoso Santoso ◽

Dewi Tristantini

Keyword(s):

Heavy Metals ◽

Aqueous Solution ◽

Metal Ions ◽

Precipitation Method ◽

X Ray Diffraction ◽

X Ray ◽

Removal Of Heavy Metals ◽

Sem Micrograph ◽

Pseudo Second Order ◽

Chitosan Composite

Hydroxyapatite/chitosan (HApC) composite has been prepared by precipitation method and used for removal of heavy metals (Cr6+, Zn2+and Cd2+) from aqueous solution. The HAp and 3H7C composite with HAp:chitosan ratio of 3:7 (wt%) were characterized by Fourier transform infrared spectroscopy, X-ray diffraction and scanning electron microscopy-energy dispersive X-ray spectroscopy. The SEM results showed that HAp is spherical-shaped and crystalline, while chitosan has a flat structure. SEM micrograph of 3H7C composite reveals crystalline of HAp uniformly spread over the surface of chitosan. The crystal structure of HAp is maintained in 3H7C composite. Chitosan affects the adsorption capacity of HAp for heavy metal ions; it binds the metal ions as well as HAp. The kinetic data was best described by the pseudo-second order. Surface adsorption and intraparticle diffusion take place in the mechanism of adsorption process. The binding of HAp powder with chitosan made the capability of composite to removal of Cr6+, Zn2+and Cd2+from aqueous solution effective. The order of removal efficiency (Cr6+> Cd2+> Zn2+) was observed.

Download Full-text