Size dependence of CdS nanoparticles on the precursor concentration and visible light driven photocatalytic degradation of methylene blue

2021 ◽  
Author(s):  
Smriti Thakur ◽  
Rupinder Kaur ◽  
Sanjay Mandal
Keyword(s):  
Methylene Blue ◽  
Coordination Polymer ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Size Dependence ◽  
Precursor Concentration ◽  
Cds Nanoparticles ◽  
Visible Light Driven

Using a Cd(II) coordination polymer, [Cd2(bpma)2(adc)2]n (where bpma = N,N’-bis(pyridylmethyl) amine and adc = acetylene dicaboxylate) as the source of Cd2+ ions and thiourea as the source of S2- ions...

Binary WO3-ZnO nanostructures supported rGO ternary nanocomposite for visible light driven photocatalytic degradation of methylene blue

2020 ◽  
Vol 269 ◽  
pp. 116526
Author(s):  
Khadija Chaudhary ◽  
Nusrat Shaheen ◽  
Sonia Zulfiqar ◽  
Muhammad Ilyas Sarwar ◽  
Muhammad Suleman ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Zno Nanostructures ◽  
Ternary Nanocomposite ◽  
Visible Light Driven

Visible light-driven photocatalytic degradation performance for methylene blue with different multi-morphological features of ZnS

RSC Advances ◽  
2016 ◽  
Vol 6 (52) ◽  
pp. 46299-46307 ◽  
Author(s):  
Hanbing Rao ◽  
Zhiwei Lu ◽  
Xin Liu ◽  
Hongwei Ge ◽  
Zhaoyi Zhang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Hydrothermal Synthesis ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Morphological Features ◽  
Synthesis Methods ◽  
Sem Images ◽  
Visible Light Driven ◽  
Self Assembled

SEM images of synthesized 3D ZnS microspheres self-assembled with various precursor substances by different hydrothermal synthesis methods: (a) dandelion-ZnS, (b) raspberry-ZnS, (c) ball-ZnS and (d) flower-ZnS.

Novel visible light driven Mg–Zn–In ternary layered materials for photocatalytic degradation of methylene blue

2013 ◽  
Vol 212 ◽  
pp. 81-88 ◽  
Author(s):  
Li Huang ◽  
Sheng Chu ◽  
Jianqiang Wang ◽  
Fei Kong ◽  
Leilei Luo ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Layered Materials ◽  
Visible Light Driven

scholarly journals Enhanced Visible Light Photocatalytic Degradation of Methylene Blue by CdS-ZnS-BiPO4 Nanocomposites Prepared by a Solvent-Assisted Heating Method

Catalysts ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1095
Author(s):  
Hsin-Chan Tsai ◽  
Yu-Hui Peng ◽  
Po-Yu Wen ◽  
Tsunghsueh Wu ◽  
Yang-Wei Lin
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Photocatalytic Degradation ◽  
Separation Efficiency ◽  
Diffuse Reflectance Spectroscopy ◽  
Pond Water ◽  
Molar Ratio ◽  
Cds Nanoparticles ◽  
Heating Method ◽  
Water Matrix

In this study, a ternary CdS-ZnS-BiPO4 nanocomposite, synthesized by a solvent-assisted heating method, demonstrated the highest visible light-induced photocatalysis towards the degradation of methylene blue (MB) when comparing with BiPO4, CdS-BiPO4, and ZnS-BiPO4. Transmission electron microscopy (TEM), X-ray powder diffraction (XRD), and UV-Vis diffuse reflectance spectroscopy (UV-vis DRS) were used to characterize the prepared nanocomposites. From UV-DRS results, the energy band gap of the prepared BiPO4 structures was 4.51 eV. When CdS nanoparticles were deposited on BiPO4 surface by a solvent-assisted heating method, the prepared nanocomposites exhibited visible light-responsive photocatalytic degradation toward MB (20 ppm). At a molar ratio of Cd to Zn as 1:7, the prepared CdS-ZnS-BiPO4 nanocomposites exhibited the best photocatalytic activity in degrading 95% of MB dyes, out-performing pure BiPO4, CdS-BiPO4, and ZnS-BiPO4 due to its enhanced charge separation efficiency and the lowered carrier recombination from the efficient p-n junction of unprecedented ternary composites. The investigations on mechanism conclude that the major reactive species responsible for MB degradation are holes and oxygen radicals. For practicality, the degradation efficiency for different dyestuff (Fast Green FCF, Rhodamine 6G, Acid Blue 1, methyl orange, and methyl red) degradation in the different water matrix samples (pond water, seawater, and lake water) by the prepared CdS-ZnS-BiPO4 nanocomposites was evaluated.

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