Surfactant-assisted hydrothermal synthesis of rGO/SnIn₄S₈ nanosheets and their application in complete removal of Cr(vi)

Abstract

Fabrication of visible-light-responsive photocatalyst (rGO/SnIn4S8) for photoreduction of Cr(vi) and adsorption of Cr(iii).

Z-Schemed WO3/rGO/SnIn4S8 Sandwich Nanohybrids for Efficient Visible Light Photocatalytic Water Purification

“…The pristine SIS displayed the diffraction peaks at 2θ = 14.3 • , 27.5 • , 33.3 • , 43.7 • , and 47.8 • which well match the (111), (311), (400), (333), and (440) crystal planes of cubic SIS (JCPDS card # 42-1305, a = b = c = 10.7507 Å). The result is in agreement with our previous report [24]. The predominant diffraction peaks of pure WO 3 at 2θ = 23.1 • , 24.4 • , and 34.2 • , attributed to (002), (020), (200), and (202) crystal planes of monoclinic WO 3 (JCPDS card # 43-1035, a = 7.297 Å, b= 7.539 Å, c = 7.688 Å).…”

“…2.0 eV. Its CB potential is positioned at −0.7 eV vs. NHE, which is more negative than the standard redox potential of •O 2 − /O 2 [24]. (2) The VB potential of SIS is positioned at +1.30 eV vs. NHE, close to the CB position (+0.26 eV vs. NHE) of WO 3 .…”

One-step synthesis of Fe2O3 nano-rod modified reduced graphene oxide composites for effective Cr(vi) removal: removal capability and mechanism

“…1 Chromium is a commonly used element in various industries, including leather tanning, electroplating, dying, ore processing, and metallurgy. 2,3 There are two essential forms of chromium in the aqueous phase: Cr(III), a biologically essential element with low toxicity, and hexavalent chromium (Cr(VI)). Cr(VI) is highly toxic, mutagenic and carcinogenic and can diffuse through cell membranes, leading to health risks.…”

Photocatalytic Degradation of Ethiofencarb by a Visible Light-Driven SnIn4S8 Photocatalyst

“…According to the literature, the peaks were located at 2θ = 14.0°, 18.6°, 23.3°, 27.4°, 28.7°, 33.2°, 41.0°, 43.6°, 47.8°, 50.1°, 55.9°, 59.4°, and 66.7°. These peaks correspond to (111), (202), (220), (311), (222), (400), (422), (333), (440), (531), (533), (444), and (553) crystalline planes of cubic phase of SnIn 4 S 8 (JCPDS card #42-1305) [ 32 , 33 ]. The prepared materials show high purity since the spectrum does not show any impurity peak.…”