Shengyang Zhong

Digitalization has emerged as a new hope for low-carbon sustainable economic growth after its successful trial during the COVID-19 measures. Therefore, both developed and developing economies focus on digitalization to cope with carbon neutrality targets. Thus, this study attempted to generate a meaningful relationship between the digital economy and green energy, innovation, and environmental tax policy to capture the role of factors in acquiring carbon neutrality. For the abovementioned objectives, modern econometric methods, such as the Kilian bias-adjusted bootstrap, were adopted to evaluate the Chinese dataset between 1990 and 2021. The results indicate that the study factors play a significant role in acquiring carbon neutrality in the long-term Chinese economy. Furthermore, quantile autoregressive distributed lag model (QARDL) indicates that all the factors influence carbon neutrality in various quantiles. Consequently, the digital economy, green energy and innovation, and environmental taxes significantly assist in attaining carbon neutrality in the long term, and the ecological Kuznets curve prevails in the economy. Therefore, radical and wide-ranging policy implications are required in many areas including environmental restrictions, digital economy promotion, green and sustainable technologies, and clean energy sources.

The goal of this study is to examine the impact of household income and air pollution on the health of developing-country residents. The panel dataset of twelve developing nations used for this purpose. High levels of fine particulate matter in the air are linked to increased health problems, and lower incomes for households in the economies studied. However, effective environmental management and renewable energy resources have a significant role in controlling the harmful impact of fine particulate matter in the air. It highlights that developing economies could lower the fine particulate matter in the air by strengthening the regional environmental policies and adopting renewable resources. In emerging countries, environmentally friendly strategies and the shift from carbon base to non-carbon-based energy would minimize pollution in the atmosphere and improve the quality of life for inhabitants and other organisms. Improved quality of life and lower levels of fine particulate matter pollution are expected to increase people’s per capita income in the region. Finally, air pollution is a transboundary phenomenon; therefore, strict compliance with environmental protection policies at the regional level is a prerequisite for improved quality of the natural environment.

In this work, polyacrylamide (PAM) was first used in the loading of heteropoly acids, and then the HPM/PAM-n catalyst was synthesized by simple reaction. The FTIR and SEM measurements showed that the HPM/PAM-n (n = 10,000, 20,000, 30,000) was successfully synthesized. In addition, the HPM/PAM-n effect on desulfurization was measured, which showed the optimal desulfurization efficiency. The optimal process condition for HPM/PAM-10000 desulfurization was optimized by a single-factor experiment. The optimal condition was as follows: The temperature was 60 °C, the amount of the catalyst was 0.2 g, the oxygen to sulfur ratio was 16, and the reaction time is 100 min. The catalyst was suitable for recycled use, and the desulfurization efficiency was high after 10 times. In the end, the oxidative desulfurization mechanism was put forward.