Modified mesoporous zeolite-A/reduced graphene oxide nanocomposite for dual removal of methylene blue and Pb2+ ions from wastewater

Author(s):  
Mohamed A. Farghali ◽  
Mohamed M. Abo-Aly ◽  
Taher A. Salaheldin
2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Gen Liu ◽  
Wei Ma ◽  
Yan Luo ◽  
Deng-ming Sun ◽  
Shuang Shao

Poly(methylene blue) and electrochemically reduced graphene oxide composite film modified electrode (PMB-ERGO/GCE) was successfully fabricated by electropolymerization and was used for simultaneous determination of uric acid (UA) and xanthine (Xa). Based on the excellent electrocatalytic activity of PMB-ERGO/GCE, the electrochemical behaviors of UA and Xa were studied by cyclic voltammetry (CV) and square wave voltammetry (SWV). Two anodic sensitive peaks at 0.630 V (versus Ag/AgCl) for UA and 1.006 V (versus Ag/AgCl) for Xa were given by CV in pH 3.0 phosphate buffer. The calibration curves for UA and Xa were obtained in the range of 8.00 × 10−8~4.00 × 10−4 M and 1.00 × 10−7~4.00 × 10−4 M, respectively, by SWV. The detection limits for UA and Xa were3.00×10-8 M and5.00×10-8 M, respectively. Finally, the proposed method was applied to simultaneously determine UA and Xa in human urine with good selectivity and high sensitivity.


Author(s):  
K. D. R. N. Kalubowila ◽  
M. Siyath Gunewardene ◽  
J. Lakmini Kaushalya Jayasingha ◽  
Dhammike Dissanayake ◽  
Charith Jayathilaka ◽  
...  

2014 ◽  
Vol 4 (12) ◽  
pp. 4396-4405 ◽  
Author(s):  
Teo Peik-See ◽  
Alagarsamy Pandikumar ◽  
Lim Hong Ngee ◽  
Huang Nay Ming ◽  
Chia Chin Hua

Synthesis of magnetically separable rGO/Fe3O4nanocomposite materials for environmental remediationviathe photocatalytic degradation of methylene blue.


2019 ◽  
Vol 223 ◽  
pp. 751-757 ◽  
Author(s):  
Chao Sun ◽  
Sheng-Tao Yang ◽  
Zhenjie Gao ◽  
Shengnan Yang ◽  
Ailimire Yilihamu ◽  
...  

2019 ◽  
Vol 36 (1) ◽  
pp. 81-89 ◽  
Author(s):  
Hui Guo ◽  
Xinfeng Ma ◽  
Chubei Wang ◽  
Jianwei Zhou ◽  
Jianxin Huang ◽  
...  

2020 ◽  
Vol 309 ◽  
pp. 113171 ◽  
Author(s):  
Mehmet Harbi Calimli ◽  
Mehmet Salih Nas ◽  
Hakan Burhan ◽  
Sibel Demiroglu Mustafov ◽  
Özkan Demirbas ◽  
...  

RSC Advances ◽  
2020 ◽  
Vol 10 (23) ◽  
pp. 13722-13731 ◽  
Author(s):  
Satish Kasturi ◽  
Sri Ramulu Torati ◽  
Yun Ji Eom ◽  
Syafiq Ahmad ◽  
Byong-June Lee ◽  
...  

Herein, we have reported the real-time photodegradation of methylene blue, an organic pollutant, in the presence of sunlight at an ambient temperature using a platinum-decorated reduced graphene oxide (rGO/Pt) nanocomposite.


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