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The study aimed at developing and evaluating a simple green electrochemistry experimental kit named Lectrofun 2.0. Lectrofun 2.0 is an educational kit equipped with a module built with the criteria of user-friendly, costeffective, and laboratory free. The basic concept of electrochemistry was introduced through a guided learning approach via the module. The objectives of this research were to (1) develop Lectrofun 2.0 module using green chemicals, recyclable and easily accessible materials and (2) evaluate the module effectiveness in terms of student achievement/understanding of the Electrochemistry topic. This is a Design and Development Research (DDR) using the ADDIE model as an instructional design model. The development phase involves the first objective of the study, while the evaluation phase involves the second objective. Total of 46 respondents of pre-post tests were involved in evaluating effectiveness of Lectrofun 2.0 in terms of student achievement/understanding of the topic. The findings showed that 73.9% of students from the treatment group showed 4-grade increment (from grade E to grade A). This study showed that Lectrofun 2.0 has a significant impact on enhancing learner comprehension of Electrochemistry topic, enjoyment in learning, and learning to care for the environment.

Sodium dodecyl sulphate surfactant was intercalated into the layered zinc hydroxide salt for the successful adsolubilisation of poor water-soluble pesticide, thiacloprid. The intercalation ...

The pH effect on arrangement of a liquid crystal (LC) system was studied in short and rigid molecule (BDMT-Hg). 1,4-benzenedimethanethiol (BDMT) doped 4-cyano-4′-pentylbiphenyl (5CB) was spontaneou...

[5,15-Di(4-aminophenyl)-10,20-diphenylporphyrinato]zinc(II) was found to electropolymerize on electrodes such as glassy carbon (GC), indium tin oxide (ITO), and tin oxide, to form a redox-active, stable, and reproducible π-conjugated polymer. Electrochemical and UV/vis spectroscopic studies showed that the electropolymerization involves azobenzene linkage formation via radical intermediates. The electrode modified with the porphyrinic wire featured strong light absorptions in the visible region, thereby serving as a photoanode for a photocurrent generation system.

This review is devoted to porphyrinoids with N-arylamino groups tethered directly to their meso positions, the study of which has significantly progressed in the past two decades. After a brief introductory description, various synthetic procedures for these compounds are described. The third section focuses on their photochemical and electrochemical properties, and reviews the synergetic effects that arise between the porphyrinoids and the N-arylamino groups. Potential applications are then discussed, focusing on dye-sensitized solar cells (DSSCs).

A new cobalt(II) ion selective electrode based on palladium(II) dichloro acetylthiophene fenchone azine(I) has been developed. The best membrane composition is found to be 10:60:10:21.1 (I)/PVC/NaTPB/DOP (w/w). The electrode exhibits a Nerstian response in the range of 1.0 × 10−1–1.0 × 10−6 M with a detection limit and slope of 8.0 × 10−7 M and 29.6 ± 0.2 mV per decade respectively. The response time is within the range of 20–25 s and can be used for a period of up to 4 months. The electrode developed reveals good selectivity for cobalt(II) and could be used in pH range of 3–7. The electrode has been successfully used in the determination of cobalt(II) in water samples.

This review is devoted to porphyrinoids with N-arylamino groups tethered directly to their meso positions, the study of which has significantly progressed in the past two decades. After a brief introductory description, various synthetic procedures for these compounds are described. The third section focuses on their photochemical and electrochemical properties, and reviews the synergetic effects that arise between the porphyrinoids and the N-arylamino groups. Potential applications are then discussed, focusing on dye-sensitized solar cells (DSSCs).