Fabrication of Highly Catalytically Active Gold Nanostructures on Filter-Paper and Their Applications towards Degradation of Environmental Pollutants

2021-10-01
Khan, Ghazanfar Ali
Nalbant Esentürk, Emren
Bek, Alpan
Bhatti, Arshad Saleem
Ahmed, Waqqar
Supported metallic nanoparticles (NPs) have recently become a promising candidate for the degradation of environmental pollutants. In this work, we report the fabrication of highly catalytically active, surfactant-free interconnected Au nanostructures directly on filter paper. The width of nanostructures is only a few nanometers and they contain high concentration of low-coordination atoms. Our approach involves the immersion and evaporation of Au precursor solution on the filter paper and its subsequent reduction. This approach generates filter paper-based gold substrates (FPGS) not only in a simple and straightforward fashion that can be executed in a matter of minutes but can also be easily scaled up for large-scale production. Owing to their surfactant-free nature, FPGS are well suited for the degradation of both cationic and anionic dyes by providing large unhindered surface for dye adsorption. The FPGS were able to completely degrade methyl orange (MO) and methylene blue (MB) dyes and also showed excellent reusability and stability.
CHEMISTRYSELECT

Suggestions

Synthesis, characteristics and mechanistic insight into the clays and clay minerals-biochar surface interactions for contaminants removal-A review
Arif, Muhammad; Liu, Guijian; Yousaf, Balal; Ahmed, Rafay; Irshad, Samina; Ashraf, Aniqa; Zia-ur-Rehman, Muhammad; Rashid, Muhammad Saqib (2021-08-10)
Biochar (BC), a low-cost, porous and carbon-rich material, exhibits excellent potential as an adsorbent in the immobilization and removal of environmental contaminants from water and soil. To enhance the surface area, functionalities and adsorption efficiency of BC, various clay and clay mineral-based physical and chemical modification methods have been adopted. Although extensive studies have been conducted to evaluate the removal efficiencies of BC-clays and clay minerals composites, insight into synthesi...
Formation of nitrogen functionalities in biochar materials and their role in the mitigation of hazardous emerging organic pollutants from wastewater
Başer, Begüm; Yousaf, Balal; Yetiş, Ülkü; Abbas, Qumber; Kwon, Eilhann E.; Wang, Shengsen; Bolan, Nanthi S.; Rinklebe, Jörg (2021-08-15)
Emerging organic pollutants (EOPs) are serious environmental concerns known for their prominent adverse and hazardous ecological effects, and persistence in nature. Their detrimental impacts have inspired researchers to develop the strategic tools that reduce and overcome the challenges caused by EOPs' rising concentration. As such, biochar becomes as a promising class of biomass-derived functional materials that can be used as low-cost and environmentally-friendly emerging catalysts to remove EOPs. Herein,...
Whole-cell fluorescent bacterial bioreporter for arsenic detection in water
Elcin, E.; Oktem, H. A. (Springer Science and Business Media LLC, 2019-10-01)
Microbial whole-cell bioreporters have been developed for environmental monitoring of arsenic contamination. Despite the great interest in bacterial bioreporters for arsenite detection, relatively few studies reported their response to arsenate levels. In this study, green fluorescent protein-based whole-cell Escherichia coli bioreporter was constructed for the measurement of both bioavailable arsenite and arsenate in water. The developed bacterial bioreporter has much higher sensitivity toward arsenate in ...
Development of graphene oxide based aerogels
Doğan, Öznur; Bat, Erhan; Department of Chemical Engineering (2017)
Owing to their large surface area, high hydrophobicity and porous structure, graphene oxide based aerogels have been proposed as feasible and economic solutions for the increasing water pollution caused by crude oils, petroleum products and toxic organic solvents. In this study, graphene oxide based aerogels were prepared via two different routes. In the first route, random copolymers of glycidyl methacrylate and styrene were used as crosslinkers in the aerogel. In the second route, 1,3-diaminopropane was u...
Evaluation of Turkey's status in terms of compliance with the requirements of the Stockholm convention
Şıltu, Esra; İmamoğlu, İpek; Department of Environmental Engineering (2014)
Persistent Organic Pollutants (POPs) are stable, toxic compounds released into the environment due to anthropogenic activities. POPs can accumulate in fatty tissues of living organisms and become concentrated up the food chain, posing a serious threat to environment and human health. Once they are released, POPs participate in long-range transport and can have a widespread effect. Stockholm Convention on POPs, which was adopted in 2001 and entered into force in 2004, is a global treaty to take measures agai...
Citation Formats
G. A. Khan, E. Nalbant Esentürk, A. Bek, A. S. Bhatti, and W. Ahmed, “Fabrication of Highly Catalytically Active Gold Nanostructures on Filter-Paper and Their Applications towards Degradation of Environmental Pollutants,” CHEMISTRYSELECT, vol. 6, no. 39, pp. 10655–10660, 2021, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/94893.