Posts

Showing posts from March, 2026

List of Chemicals

Chemicals and Basic Instruments Available for Nanoscience Research Chemicals and Basic Instruments Available for Nanoscience Research Note: The following list includes the chemicals and basic laboratory facilities available for nanoscience and nanotechnology related research activities in the laboratory. The list now includes the additional chemicals recently identified from the supplied records. 1. Main Chemicals Available for Research Sl. No. Chemical Name Formula / Identification Purity / Grade Remarks / Possible Use 1 Aluminium nitrate nonahydrate Al(NO 3 ) 3 ·9H 2 O 98% Metal precursor for Al-based MOFs and oxides 2 Methanol CH 3 OH 99–99.8%, ACS/Reagent grade Solvent 3 Distilled / deionised water H 2 O Laboratory grade Solvent, washing medium 4 2-Aminoterephthalic acid C 8 H 7 NO 4 99% Organic linker for NH 2 -MIL-53(Al) and rel...

NH2-MIL-53(Al) Synthesis

NH2-MIL-53(Al) Synthesis SOP Standard Operating Procedure (SOP) Synthesis of NH 2 -MIL-53(Al) using Aluminium Nitrate + 2-Aminoterephthalic Acid Hydrothermal / Solvothermal route using DMF + Water Al-MOF Magnetic Stirrer Digital pH Meter Teflon-lined Autoclave Beginner-Friendly Lab SOP “SOP” 1. Aim To synthesize NH 2 -MIL-53(Al) , an amino-functionalized aluminium-based metal-organic framework (Al-MOF), using a mixed solvent system of DMF and water , followed by drying and activation for future characterization and photocatalytic studies. 2. Important Note Very important: Confirm the exact hydrate form of aluminium nitrate on the bottle label before weighing. Many procedures use Al(NO 3 ) 3 ·9H 2 O , but your available bottle may be a differen...

Error Analysis

Fundamentals of Error Analysis Fundamentals of Error Analysis “A measured value without its error is only half the truth.” Core Idea What is Error Analysis? Error analysis is the study of uncertainty in measurement . It helps us understand how much our measured value can be trusted. Scientific Honesty Why is it Needed? In science, no measurement is perfectly exact. Error analysis prevents us from making false claims of precision . Simple Truth Main Message Measuring is not just about getting a number. It is about knowing how reliable that number is . 1. Why Do We Need Error Analysis? Every time we measure something — length, mass, voltage, time, temperature — there i...

Science day talk

Image
  Link to talk Raman Scattering – Wall & Spring Analogy Raman Scattering – Wall & Spring Analogy (BSc) Use this analogy to explain Rayleigh, Stokes and Anti-Stokes scattering clearly. Setup: Treat the molecule as a wall and its vibration as a spring attached to the wall. Photon as a ball: The incoming photon is like a ball thrown at the wall . Rayleigh (elastic): If the wall is effectively rigid (no spring energy taken/given), the ball rebounds with the same speed . Rayleigh meaning: No energy exchange with vibration → frequency unchanged (only direction changes). Raman (inelastic): If the wall has a spring (vibrational mode), collision can exchange energy with the spring. Stokes case: If the spring starts vibrating after collision, the ball loses energy and rebounds slower . Stokes meaning: Photon loses energy to the molecule → scattered light has lower frequency (longer wavelength). ...