Carbon nitride, metal nitrides, phosphides, chalcogenides, perovskites and carbides nanophotocatalysts for environmental applications

Kumar, Amit; Thakur, Priya Rittika; Sharma, Gaurav; Naushad, Mu.; Rana, Anamika; Mola, Genene Tessema; Stadler, Florian J.

doi:10.1007/s10311-018-0814-8

Cited by 62 publications

(18 citation statements)

References 278 publications

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“…Later, Sreelekha et al (2016) have prepared virgin and co-doped covellite copper (II) sulphide NPs (to be thereafter assessed for the sunlight photocatalytic degradation of rhodamine B) whereby the pristine CuS was found to be endowed with diamagnetic property and the co-doped NPs had increasing room-temperature ferromagnetism with higher doping precursor concentrations. Last but not least, Sanjeev Kumar et al (2019) recently synthesized undoped and gadolinium-doped ZnS NPs to be assessed for their photocatalytic degradation capacity for methyl orange and methylene blue dyes and an industrial effluent and reported, inter alia, that room-temperature magnetic studies of gadolinium-doped ZnS NPs indicated that this material exhibited magnetic hysteresis.…”

Section: Reusability Of Photocatalystsmentioning

confidence: 99%

“…The aim of these efforts is, most comprehensibly, to come up with such a remediation and detoxification package which can allow the degradation, mineralization and eventually near-complete removal of the parent dye moieties and their respective degradation intermediates and by-products. Amongst the various remediation approaches for removing dye molecules, heterogeneous photocatalysis has been receiving significant importance in the scientific research ambit (Reddy et al 2016;Kumar et al 2019). Indeed, heterogeneous photocatalysis has been employed for the degradation of different dyes (Wang et al 2010; Barbosa et al 2015;Al-Kahtani and Abou Taleb 2016;Ajmal et al 2016) by virtue of the greenness traits emanating from the unique morphologies and outstanding physico-chemical characteristics of the novel photocatalysts.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

et al. 2020

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Textile wastewaters contain refractory dyes that cause pollution and socioeconomic issues, thus calling for efficient remediation techniques such as photocatalysis. We review the fabrication, functionalization, performance and limitations of doped catalysts for degrading and mineralizing dyes. We present developments in photocatalyst immobilization and photocatalytic reactor design. Methods such as microwave irradiation, sonication and use of ionic liquids are emerging for the preparation of doped photocatalysts. Whilst single-dye systems have been extensively studied, there is limited knowledge on multipledye systems. Immobilization of photocatalysts is gaining popularity for large-scale application, but faces issues of erosion, corrosion, mechanical strength and structure integrity. Ecotoxicological studies are required in real environments to validate the potential applications of nanostructured doped photocatalysts.

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Section: Reusability Of Photocatalystsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

et al. 2020

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“…Among these, the Co 16 N 2 phase is being Electronic supplementary material The online version of this article (https ://doi.org/10.1007/s4245 2-019-1808-2) contains supplementary material, which is available to authorized users. explored recently [24], Co 2 N and Co 3 N have been studied by several co-workers [25][26][27][28][29]. The N-rich CoN 2 phase was recently synthesized under high pressure high temperature (30 GPa, 1600 K) [30].…”

Section: Introductionmentioning

confidence: 99%

X-ray absorption spectroscopy study of cobalt mononitride thin films

et al. 2019

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We present a comprehensive study to resolve the debate about the structure of cobalt mononitride (CoN). In contradiction with theoretical predictions, experimentally CoN has been claimed to synthesize in a rock-salt (RS) and in a zincblende (ZB)-type structure under ambient pressure and temperature. Utilizing X-ray absorption near-edge spectroscopy (XANES) at Co and N K-edges and extended X-ray absorption fine structure (EXAFS) at Co K-edge, we investigated the structure of CoN in detail. The presence of a strong pre-edge feature at the Co K-edge and the absence of t 2 feature at the N K-edge indicate towards the tetrahedral coordination that is expected in the ZB-type structure of CoN. Theoretical simulations of XANES spectra unambiguously confirm the ZB-type structure in CoN. Also from EXAFS data, we found that CoN and Co-Co bond distances match well with ZB-CoN. Magnetic properties of CoN were examined using polarized neutron reflectivity and bulk magnetization measurements. It was found that CoN sample exhibits a paramagnetic behaviour as expected in ZB-CoN. Obtained results clearly demonstrate that CoN indeed crystalizes in the ZB-type structure, and the possibility of the RS-type CoN can be ruled out under ambient pressure and temperature. It is anticipated that the information about the structure of CoN can be utilized for its usage in emerging areas such as low-cost catalyst in oxygen and hydrogen evaluation reactions, high capacity anode in ion batteries and in photovoltaic applications.

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“…As photocatalysts have a superior capability in the deactivation of various destructive microorganisms, they could reasonably be used as alternatives to conventional techniques (e.g., chlorination), which can generate harmful and undesirable by-products [47]. Photocatalysis is a flexible and successful procedure that can be adopted in numerous cleansing applications in both air and water frameworks [48].…”

Section: Biomedical Applications Of Nanophotocatalystsmentioning

confidence: 99%

Biomedical Waste Management by Using Nanophotocatalysts: The Need for New Options

et al. 2020

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Biomedical waste management is getting significant consideration among treatment technologies, since insufficient management can cause danger to medicinal service specialists, patients, and their environmental conditions. The improvement of waste administration protocols, plans, and policies are surveyed, despite setting up training programs on legitimate waste administration for all healthcare service staff. Most biomedical waste substances do not degrade in the environment, and may also not be thoroughly removed through treatment processes. Therefore, the long-lasting persistence of biomedical waste can effectively have adverse impact on wildlife and human beings, as well. Hence, photocatalysis is gaining increasing attention for eradication of pollutants and for improving the safety and clearness of the environment due to its great potential as a green and eco-friendly process. In this regard, nanostructured photocatalysts, in contrast to their regular counterparts, exhibit significant attributes such as non-toxicity, low cost and higher absorption efficiency in a wider range of the solar spectrum, making them the best candidate to employ for photodegradation. Due to these unique properties of nanophotocatalysts for biomedical waste management, we aim to critically evaluate various aspects of these materials in the present review and highlight their importance in healthcare service settings.

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Carbon nitride, metal nitrides, phosphides, chalcogenides, perovskites and carbides nanophotocatalysts for environmental applications

Cited by 62 publications

References 278 publications

Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

Fabrication, functionalization and performance of doped photocatalysts for dye degradation and mineralization: a review

X-ray absorption spectroscopy study of cobalt mononitride thin films

Biomedical Waste Management by Using Nanophotocatalysts: The Need for New Options

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