Impact of CdS/SnO2 heterostructured nanoparticle as visible light active photocatalyst for the removal methylene blue dye

A novel BiVO3/SnO2 step S-scheme nano-heterojunction for an enhanced visible light photocatalytic degradation of amaranth dye and hydrogen production

“…In this research, adopting the type (II) heterojunction 15,19 involves the electron transfer from the more negative to less negative potential conduction band; however, holes transfer in the opposite direction. Based on the above arguments, electrons transfer from more negative potential SnO 2 to less negative potential BiVO 3 conduction band.…”

“…However, the wide band gap energy, the lower quantum efficiency of charge carriers and the photocatalytic response in the UV region only are negative factors in optimizing its photocatalytic reactivity. [15][16][17][18][19][20] Bismuth vanadate nanoparticles possess high stability, non-toxicity, rapid formation of the electron-hole pairs by photo-excitation and negative reduction potentials. [21][22][23][24][25][26][27][28][29] The construction of tin oxide-bismuth vanadate heterojunctions is a hot issue in photocatalytic reactions that facilitate the charge transportation and produce charge carriers with strong redox power.…”

Effective adsorptive removal of anionic dyes from aqueous solution

“…PMNs elimination of the two dyes RB5 and CR at separate pH (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12) values. Concentrations of 1.8310 -3 molL -1 of the adsorbent dose of RB5, 25 o C and 0.02 g were examined while the initial concentration of CR, 25 o C and 0.02 g of PMNs was 1.310 -3 molL -1 .…”

“…[1] Because of the highly coloured waste discharged by dyeing plants, they are significant sources of contamination in the environment. [2][3][4][5] Colorants are light, chemical, and oxidizing agent resistant, and their chemical composition is biologically inert. As a result, it is difficult to extract once released into the aquatic world.…”

Analytical Chemistry Optical Chemosensor for Spectrophotometric Determination of Nitrite in Wastewater

“…High surface area of porous material provides places for the adsorption and distribution of the detected matter and increase concentration. [22][23][24][25][26][27] Recently, the researchers focusing on nanopore and porous materials, which used on the determination of ions and they do a lot of work to enhance sensitivity, responsiveness, and selectivity. This type of fast, sensitive and high selectivity towards ions can be obtained by adjusting pore diameter and the surface area of porous material.…”