A novel Ni doped BaTiO3/h-BN nanocomposite for visible light assisted enhanced photocatalytic degradation of textile effluent and phytotoxicity evaluation

The objective of this research is to synthesize novel Ni-BaTiO3/h-BN nanocomposites. XRD, UV-Vis, PL, FT-IR, SEM, TEM, Zeta potential, XPS, BET, EIS, Mott-Schottky and LC-MS analyses were used to analyze the nano-composite phase structure, band gap, electron-hole recombination rate, vibrational modes, morphology, elemental analysis stability, oxidation state, pore size distribution, and electron distribution. The nanocomposites have an average particle size of 32 nm, as measured using HR-TEM microscopy. The band gap of synthesized h-BN was found to be 3.82 eV, whereas the Ni-BaTiO3/h-BN binary nanocomposite shifts it to 2.43 eV. The nanocomposite photocatalytic efficiency was used to degrade textile effluent, followed by a phytotoxicity assessment of real textile effluent. Furthermore, the photocatalytic treatment analysis revealed that the 40 mg Ni-BaTiO3/h-BN catalyst degraded up to 81.4% and 86% against textile effluent and crystal violet (CV) dye within 120 min under visible light, respectively, and the concentrations of numerous Physico-chemical param-eters of textile effluent have significantly decreased in deteriorated textile effluent. According to a pot study, the toxicity of the degraded textile effluent was reduced following photocatalytic treatment. To examine the mechanism, the photodegradation effectiveness of the catalyst was investigated utilizing various scavengers. From the scavenger study, it is found that the holes (h+) contribute more to the degradation process. In real textile dye wastewater, the Ni-BaTiO3/h-BN nanocatalyst was proved to be an excellent and low-cost degrading technique.

Automated summary

The objective of this research is to synthesize novel Ni-BaTiO3/h-BN nanocomposites and analyze their properties using various techniques. The synthesized nanocomposites have an average particle size of 32 nm and a band gap of 2.43 eV. Photocatalytic treatment using Ni-BaTiO3/h-BN catalyst showed high degradation efficiency for textile effluent and crystal violet dye under visible light. The toxicity of the degraded textile effluent was reduced after photocatalytic treatment. The scavenger study revealed that holes (h+) played a major role in the degradation process. The Ni-BaTiO3/h-BN nanocatalyst proved to be effective and low-cost for degrading textile dye wastewater.