Photocatalytic Activities of Electrospun TiO2/Styrofoam Composite Nanofiber Membrane in Degradation of Waste Water

2015 ◽  
Vol 827 ◽  
pp. 7-12 ◽  
Author(s):  
Abdul Rajak ◽  
Muhammad Miftahul Munir ◽  
Abdullah Mikrajuddin ◽  
Khairurrijal
Keyword(s):  
Waste Water ◽  
Precursor Solution ◽  
Composite Fiber ◽  
Textile Dye ◽  
Photocatalytic Process ◽  
Fiber Membrane ◽  
Nanofiber Membrane ◽  
Structure And Morphology ◽  
Citronella Oil ◽  
Photocatalytic Activities

TiO2/Styrofoam composite fiber membranes were synthesized by using an electrospinning system for water purification applications. Composite fiber membrane was fabricated from precursor solution prepared by dissolving Styrofoam in the mixture of tetrahydrofuran (THF), citronella oil and cajuput oil. The precursor solutions is mixed with TiO2powder with three variations based on the concentration (1:15,1:20 and 1:40). Textile dye with 50 ppm of concentration was performed as a model of waste water. The structure and morphology of each membrane were characterized by using scanning electron microscopy (SEM). The photocatalytic activity was investigated under the bulb light with 60 watt of power in the box of photocatalytic test. Observation of photocatalytic process were performed for 30 hours. The quantitative data of the decrease in the concentration of wantex solution were measured by using UV-Vis spectrometer and simple spectrometer which was developed recently. It was shown that there are significant decrease of the concentration of wantex solutions performed by each membrane. As many as 69% of wantex solution have been successfully degraded for 30 hours under the bulb light.

scholarly journals Electrospinning preparation and anti-infrared radiation performance of silica/titanium dioxide composite nanofiber membrane

RSC Advances ◽  
2021 ◽  
Vol 11 (39) ◽  
pp. 23901-23907
Author(s):  
Yilong Song ◽  
Fang Zhao ◽  
Zhizun Li ◽  
Zhaogang Cheng ◽  
Hongjun Huang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Titanium Dioxide ◽  
Composite Fiber ◽  
Shielding Effect ◽  
Fiber Membrane ◽  
Nanofiber Membrane ◽  
Infrared Transmittance ◽  
Infrared Rays ◽  
Composite Nanofiber ◽  
Rutile Titanium Dioxide

The silica/titanium dioxide composite fiber membrane is prepared by electrospinning. Based on the shielding effect of rutile titanium dioxide on infrared rays, the fiber membrane has lower infrared transmittance and thermal conductivity.

Degradable ultrathin high-performance photocatalytic hydrogen generator from porous electrospun composite fiber membrane with enhanced light absorption ability

2021 ◽  
Author(s):  
Qian-Yu Wang ◽  
Zheng-Min Zhang ◽  
Lin Liu ◽  
Lu Bai ◽  
Rui-Ying Bao ◽  
...  
Keyword(s):  
Phase Separation ◽  
Light Absorption ◽  
High Performance ◽  
Composite Fiber ◽  
Channel Structure ◽  
Separation Mechanism ◽  
Hydrogen Generator ◽  
Fiber Membrane ◽  
Breath Figure ◽  
Phase Separation Mechanism

Poly(L-lactide) (PLA)/TiO2/Pt composite fiber membrane with internal porous channel structure is fabricated by skillfully tuning the breath figure mechanism and vapor induced phase separation mechanism with solute and solvent matching...

Electrospun LiFePO4/C Composite Fiber Membrane as a Binder-Free, Self-Standing Cathode for Power Lithium-Ion Battery

2018 ◽  
Vol 18 (7) ◽  
pp. 4720-4727 ◽  
Author(s):  
Li-Li Chen ◽  
Xiang-Qian Shen ◽  
Mao-Xiang Jing ◽  
Sheng-Wen Zhu ◽  
Zhi-Chao Pi ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Composite Fiber ◽  
Fiber Membrane ◽  
Binder Free

scholarly journals Facile Solvothermal Synthesis of Hollow BiOBr Submicrospheres with Enhanced Visible-Light-Responsive Photocatalytic Performance

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Linrui Hou ◽  
Yawei Niu ◽  
Fan Yang ◽  
Fengyue Ge ◽  
Changzhou Yuan
Keyword(s):  
Waste Water ◽  
Methyl Orange ◽  
Water Treatment ◽  
Visible Light ◽  
Solvothermal Synthesis ◽  
Photocatalytic Performance ◽  
Waste Water Treatment ◽  
Commercial Application ◽  
Visible Light Absorption ◽  
Photocatalytic Activities

In this work, hierarchical hollow BiOBr submicrospheres (HBSMs) were successfully prepared via a facile yet efficient solvothermal strategy. Remarkable effects of solvents upon the crystallinities, morphologies, and microstructures of the BiOBr products were systematically investigated, which revealed that the glycerol/isopropanol volumetric ratio played a significant role in the formation of hollow architecture. Accordingly, the underlying formation mechanism of the hollow submicrospheres was tentatively put forward here. Furthermore, the photocatalytic activities of the resulting HBSMs were evaluated in detail with photocatalytic degradation of the organic methyl orange under visible light irradiation. Encouragingly, the as-obtained HBSMs with striking recyclability demonstrated excellent visible-light-responsive photocatalytic performance, which benefits from their large surface area, effective visible light absorption, and unique hollow feature, highlighting their promising commercial application in waste water treatment.

A quaternary composite fiber membrane for guided tissue regeneration

2015 ◽  
Vol 27 (2) ◽  
pp. 178-184 ◽  
Author(s):  
Haotian Li ◽  
Ping Song ◽  
Tiankui Qiao ◽  
Qingqing Cui ◽  
Xiaofeng Song ◽  
...  
Keyword(s):  
Tissue Regeneration ◽  
Composite Fiber ◽  
Guided Tissue Regeneration ◽  
Fiber Membrane

Superhydrophobicity of polyvinylidene fluoride induced by integrating liquid-exfoliated hexagonal boron nitride nanosheets

2019 ◽  
Vol 32 (1) ◽  
pp. 73-82 ◽  
Author(s):  
Lulu An ◽  
Changning Bai ◽  
Yongqing Bai ◽  
Bin Zhang ◽  
Yuanlie Yu ◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Boron Nitride ◽  
Polyvinylidene Fluoride ◽  
Hexagonal Boron Nitride ◽  
Waste Water Treatment ◽  
Preparation Process ◽  
Structure And Morphology ◽  
Boron Nitride Nanosheets ◽  
Morphology Changes

The superhydrophobicity of polyvinylidene fluoride (PVDF) membranes can be achieved by adding a small amount of hexagonal boron nitride nanosheets ( h-BNNSs) during the preparation process. The h-BNNSs can be fabricated by two steps of facile ultrasonication of commercial h-BN powders in water and subsequent centrifugation process. The introduction of a small amount of h-BNNSs into PVDF will result in structure and morphology changes of final PVDF membranes. The changes of the structure and morphology can significantly reduce the surface wettability of PVDF membranes, even generating superhydrophobicity. However, the superoleophilicity of PVDF membranes is well kept, which is not influenced by the introduction of h-BNNSs. The excellent superhydrophobicity and superoleophilicity make these porous h-BNNS/PVDF composites to be promising candidates for separating oil and water as membranes in practical oil-polluted waste water treatment.

OPTIMIZATION OF ADSORPTION PROCESS FOR REMOVAL OF SULPHONATED DI AZO TEXTILE DYE

2015 ◽  
Vol 1 (01) ◽  
pp. 61-66 ◽  
Author(s):  
Shraddha Khamparia ◽  
Dipika Jaspal ◽  
Arti Malviya
Keyword(s):  
Waste Water ◽  
Significant Contribution ◽  
Waste Water Treatment ◽  
Textile Dye ◽  
Argemone Mexicana ◽  
Sieve Size ◽  
Synthetic Solution ◽  
Neutral Conditions ◽  
Textile Waste Water ◽  
Maximum Decolorization

Treatment of textile waste water has emerged as a great matter of concern amongst scientific community because of essentiality and scarcity of this valuable natural resource. Various techniques have been employed for waste water treatment, amongst which use of natural materials have made a significant contribution in the area of sustainable environment.This paper focuses on the use of the seeds of Argemone Mexicana, a weed for removal of a textile dye from its synthetic solution. Optimisation of several parameters has been carried out for elimination of dye from water resource at neutral conditions. Variation in different parameters affecting decolorization of the dye from aqueous solution, have been studied at length. Maximum decolorization (About 60%) has been observed after four hours with 0.1 g of the elected natural adsorbent obtained after passing through sieve size of 300 µm. 

scholarly journals Cellulose Acetate Hollow Fiber Membranes from Banana Stem Fibers Coated by TiO2 for Degradation of Waste Textile Dye

2021 ◽  
Vol 15 (2) ◽  
pp. 291-298
Author(s):  
Siti Wafiroh ◽  
◽  
Abdulloh Abdulloh ◽  
Alfa Akustia Widati ◽  
◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cellulose Acetate ◽  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Textile Dye ◽  
Fiber Membrane ◽  
Alternative Material ◽  
Resistance Performance ◽  
Dope Concentration ◽  
Banana Stem

Cellulose acetate hollow fiber membrane from banana stem fibers coated by TiO2 (CAHFMT) was prepared and characterized as an alternative material for degradation of waste textile dye. Its applicability was demonstrated by mechanical properties, FTIR, SEM, thermal resistance, performance, and degradation efficiency. Cellulose acetate (CA) was synthesized from banana stem fibers by swelling stage, acetylation reaction, and hydrolysis reaction. CA was modified using TiO2 of various concentrations. CAHFMT with 22 % w/v dope concentration has the optimum mechanical properties (stress, strain and Young’s modulus), as well as hydrophilic properties. The performances of CAHFMT with Congo red were determined. The SEM results showed that the membrane had rigid pores. Moreover, this research stated that CAHFMT could be a solution to overcome economical and effective problems.

scholarly journals Adsorption of cadmium ions from simulated battery waste water by polyethylene polyamine modified activated carbon

2021 ◽  
Author(s):  
Baoying Wang ◽  
Jingming Lan ◽  
Junli Pu ◽  
Xiu Liu ◽  
Bonglin Gong
Keyword(s):  
Waste Water ◽  
Activated Carbon ◽  
Potassium Hydroxide ◽  
Competitive Adsorption ◽  
Chemical Plants ◽  
Modified Activated Carbon ◽  
Cadmium Ions ◽  
Structure And Morphology ◽  
Polyethylene Polyamine ◽  
Pseudo Second Order

Abstract The objective of this work was to study the treatment of waste water containing cadmium ions (Cd2+). Activated carbon (AC) was modified with potassium hydroxide (KOH) and polyethylene polyamine (PEPA). The structure and morphology of the modified AC was characterized. The effect of pH on adsorption was investigated, and the binary competitive adsorption and the reusability of the modified AC were studied. Subsequently the modified AC was used as an adsorbent for the removal of Cd2+ from wastewater. The adsorption capacity of optimized modified AC was 9.7 times that of unmodified AC. Kinetic adsorption curves were in accordance with pseudo-second-order kinetics, and the isothermal curves were in accordance with the Langmuir equation. The results indicate that the AC has a potential in the treatment of the waste water containing Cd2+ discharged from chemical plants during battery manufacturing.

Sign in / Sign up

Export Citation Format

Share Document