Facile synthesis of ZnS nanostructured spheres and their photocatalytic properties

3C-SiC/ZnS heterostructured nanospheres with high photocatalytic activity and enhancement mechanism

“…C Among the various semiconductor photocatalysts for pollutant degradation and water splitting, zinc sulfide (ZnS) is one of the most popular and has been studied extensively because it possesses a band structure tunable by doping and the proper negative reduction potential. [1][2][3][4][5][6][7][8][9][10][11] Similar to TiO 2 , bulk ZnS possesses wide bandgaps of 3.72 (zinc-blende) and 3.77 eV (wurtzite), 4,5 which hamper efficient use of solar energy. Hence, studies have been carried out to modify/modulate the band structure.…”

“…The surface is rough because of the weak interactions between excessive L-cysteine molecules. 3 L-cysteine has the-SH function groups which can bond easily with zinc ions, 22 leading to the formation of the hexagonal wurtzite phase at low temperature (see supplementary material). 21 When SiC NCs are used, the size of the spherical agglomerates increases to about 300 nm.…”

“…The results indicate that by varying the amount of SiC NCs, the density of SiC NCs to encircle the ZnS nanospheres can be controlled. Here, L-cysteine provides the thiol groups to form stable Cys/Zn complexes 3,8 and the complex groups on the SiC NC surface bind the SiC NCs to Cys/Zn complexes. Consequent hydrothermal reaction produces SiC/ZnS composite NCs finally leading to the formation of large nanospheres with SiC NCs on the surface (Fig.…”

Synthesis of single-crystal-like TiO2 hierarchical spheres with exposed {101} and {111} facets via lysine-inspired method

“…For example, TiO 2 and ZnS spheres [21,[24][25][26], ZrO 2 and SnO 2 hollow spheres [22,23], Bi 2 S 3 with flower-like appearance [20], etc. have been successful prepared via amino acid-inspired synthetic route.…”

Microwave hydrothermal synthesis and photocatalytic activities of morphology-controlled ZnS crystallites

“…ZnS possesses two crystal structures, cubic sphalerite and hexagonal wurtzite with different optical properties [1]. Now increasing attentions have been focused on the high efficiency and chemical stability of ZnS as photocatalysis for the treatment of recalcitrant and toxic pollutants present in wastewater [5,6].…”