Browsing by Author "Hossain, M.S.,"

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Extract of Green Chili—A New Source of Electricity
(Springer Science and Business Media Deutschland GmbH, 2021) Ohiduzzaman, M.,; Khan, K.A.,; Islam, S.,; Hossain, M.S.,; Rasel, S.R.
Green chili is abundantly available for everywhere in the world. It is cultivating for cooking in curry. It can be used a green source of energy. Previously, it has been generated electricity from different vegetative and fruits. Electrochemistry is the responsible of mechanism for electricity generation from vegetative and fruits. In this paper, it has been used as a source of electricity using electrochemical cell. The Zn/Cu-based electrodes were used, and the extract of the green chili was used as an electrolyte. The green-electrochemical systems achieve the reduction reaction with a certain voltage for which electrons transfer between the cathode and anode. Here, cathode means gain of electron, and anode means loss of electrons. In this research paper, zinc is used as an anode, and copper is used as a cathode. The electrons react with Cu2+ and H+. The Cu2+ and H+ eventually convert into Cu and H2 atoms. Finally, it is shown that Cu atoms were deposited onto the copper plate, and H2 releases from the green chili electrochemical cell. The experimental results were observed with and without adding copper sulfate solution $${\text{CuSO}}:{4} \cdot 5{\text{H}}_{2} {\text{O}} $$ as a secondary salt. The outcome of the research work improvises a better understanding on the electricity generation technology of the system.
Is green regulation effective or a failure: Comparative analysis between Bangladesh Bank (BB) green guidelines and global reporting initiative guidelines
(MDPI, 2018-04) Masud, M.A.K.,; Hossain, M.S.,; Kim, J.D.
Green reporting and green regulation have been commonly used in the sustainability movement. This study evaluates Bangladesh Bank's (BB's) green regulation by considering the global reporting initiative (GRI) of environmental regulation along with self-determined content to justify BB's institutional effort in the banking sector. The analytical study has considered secondary data of all listed banks on the Dhaka Stock Exchange between 2013 to 2016. A multi-theoretical framework has been adopted in which the research is comprised of institutional, stakeholder, and legitimacy theories. Considering the analytical research, we have drawn-up a green reporting score and undertaken SWOT analysis. The results of the study have identified the narrow coverage of BB's regulation and strategic limitations. Moreover, the findings of the study show that banking companies disclosed more green information in line with BB's regulation. Furthermore, our analysis has found the lack of transparency of green reporting in terms of absent global reporting as well as external verification. Additionally, we have documented that BB's regulation falls into a legitimacy threat owing to political, corporate, and social responsibility. Therefore, we concluded that for BB to overcome all possible weaknesses and threats, it should consider all possible opportunities for a holistic international reporting framework while taking into account a transparent financial sector.
Sustainable Coloration and Functionalization of Silk Fabric Through Chinese Fringe Leaves (Loropetalum chinense) Extraction Using the Taguchi Method: An Alternative for Waste Managemen
(Korean Fiber Society, 2025-01-26) Hossain, M.S.,; Islam, S.R.; Zhou, Y.; Khan, A.; Saeed, H.A.M.
The escalating concern over the environmental impact of synthetic dyes in the textile industry has fueled a burgeoning interest in natural alternatives. This study aims to investigate the dyeing performance of silk fabric using dye extracted from Chinese fringe leaves (Loropetalum chinense), which are devoid of harmful chemicals, and to promote eco-friendly practices. The extraction process involved normal heating with crushed leaves, ensuring a purely natural dyeing method. Through experimentation, it was observed that higher dyeing temperatures, increased dye ratios, and longer dyeing durations enhanced color strength in the silk fabric treated with the Chinese fringe leaves dye. An orthogonal (L16) Taguchi method was applied to determine the optimal dyeing conditions, emphasizing the significance of dye dosage and temperature in achieving maximum color strength. The initial parameter of K/S was 11.3 and the predicted parameter of K/S was 11.43, where the confirmation test value of K/S was 11.49 for the dyed fabric sample. Moreover, assessments of color fastness demonstrated satisfactory results ranging from good to excellent for washing, perspiration, rubbing, and light fastness. Fourier transform infrared analysis elucidated the interaction between dye molecules and silk fabric while scanning electron microscopy revealed the dye absorption by the silk fabric's surface. Thermogravimetric analysis revealed differences in thermal properties between dyed and undyed silk fabric, with dyed fabric exhibiting lower melting points and reduced thermal stability. Additionally, the dyed silk fabric exhibited decreased air permeability of 122 ± 2 mm/s with an increased protection factor of 317.9 against UV and sun rays compared to its undyed silk fabric sample. In inference, the dye extracted from Chinese fringe leaves possessed a favorable affinity for silk fabric, presenting a promising alternative to synthetic dyes for sustainable coloration and functionalization in the textile industry.