Quantum Eects in Electrical Conductivity and Photoconductivity of Single SbSI Nanowire

For the rst time current quantization is reported for antimony sulfoiodide (SbSI) nanowires. It has been registered in current responses on electric eld switching as well as on illumination on and o. Current steps determined in all experiments have been equal to each other within the experimental error. It has been explained by the quantized change of free carrier concentration in nanowire. Lateral dimensions of SbSI nanowires estimated from quantum steps are comparable with geometrical data reported for the same technology of material preparation

SbSI Single Nanowires as Humidity Sensors

For the first time influence of humidity on photoconductivity transient characteristics are studied for antimony sulfoiodide (SbSI) single nanowires. While negative photoconductivity is observed for SbSI gel, made up of large quantity of nanowires, only the positive effect occurs for SbSI single nanowires. Photoconductivity current response on switching on and off illumination in moist $N_{2}$ represents so-called hook anomaly

Desorption of Gasses Induced by Ferroelectric Transition in SbSI Nanowires

For the first time the thermal desorption of $H_2$, $N_2$, $O_2$ and $CO_2$ is presented for antimony sulfoiodide (SbSI) xerogel made up of large quantity nanowires. The desorption has been observed near ferroelectric phase transition established at $T_{c}$=293.0(2) K. The Sievert measurements have shown that the hydrogen uptake is linear function of $H_2$ pressure (when p < 1.1×$10^5$ Pa). The hydrogen storage density in SbSI gel amounted 1.24× $10^{-2}$ wt% (for p = 1.08×$10^5$ Pa at room temperature)

Unraveling highly efficient nanomaterial photocatalyst for pollutant removal: a comprehensive review and future progress

The presence of pollutants in the environment harms the living organism. Photocatalytic technology has been considered as one of the efficient methods for pollutant removal. Photocatalysis is a process that converts abundantly available photonic energy into useful chemical energy. Nanostructured photocatalysts have gained attention in various applications such as removal of organic pollutants, reduction of the level of contaminations arising out of heavy metals, purification of water, and evolution of hydrogen as they possess multiple benefits such as improved light-harvesting efficiency, low charge recombination, and accelerated surface reactions. The foremost goal of such photocatalysis-based technologies is to synthesize an efficient photocatalyst material with high catalytic efficiency and energy harvesting capability in light spectra such as ultra-violet (UV) or visible regions. This article provides an extensive review of different photocatalytic materials that are activated in UV or visible light irradiation for pollutant removal. Special attention is paid to metal oxides, chalcogenides, chalcohalides, perovskites, carbon-based materials, and metal-organic frameworks (MOFs), which are considered active photocatalyst materials. This review article summarizes the recent achievements in the photocatalytic removal of harmful contaminants using a wide range of materials from the most explored inorganic compounds to novel heterostructures as well as hybrid inorganic-organic structures. Moreover, the influence of different factors, including material morphology, surface area, optical properties, and material doping on photocatalytic activity is discussed in detail in this article. Finally, the prospects in new catalyst design, preparation, and modification are proposed to overcome the significant problems existing in the field of modern photocatalysis. © 2021 Published by Elsevier Ltd.FALS